Linneus, Missouri climate: Normal weather by month, frost dates and records
Linneus's normal year runs from 16°F January nights to 86°F July afternoons, with 39.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.2°C, January lows of −9°C, July highs of 30°C, 1,001 mm of precipitation a year.
- NOAA stationLinneus (3 mi SE)
- Station IDUSC00234982
- Location39.86°N 93.15°W
- Elevation814 ft (248 m)
- From the center2 miles
- Population280
On October 23, the normal high in Linneus is 61°F and the normal low 40°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Linneus.
- Jan 34° 16°
- Feb 39° 21°
- Mar 51° 31°
- Apr 63° 42°
- May 72° 53°
- Jun 81° 63°
- Jul 86° 66°
- Aug 84° 64°
- Sep 77° 55°
- Oct 65° 43°
- Nov 51° 32°
- Dec 39° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Linneus each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 16°F. The most precipitation falls in May (5.51 in), the least in January (1.19 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 34°F | 16°F | 25.1°F | 1.19 | 5 | <1 | 29 | 9 h 40 min |
| February | 39°F | 21°F | 30.1°F | 1.73 | 5 | <1 | 25 | 10 h 40 min |
| March | 51°F | 31°F | 41.0°F | 2.69 | 8 | <1 | 16 | 11 h 50 min |
| April | 63°F | 42°F | 52.3°F | 3.53 | 10 | <1 | 6 | 13 h 10 min |
| May | 72°F | 53°F | 62.7°F | 5.51 | 12 | 1 | <1 | 14 h 20 min |
| June | 81°F | 63°F | 71.9°F | 5.29 | 11 | 4 | <1 | 15 h |
| July | 86°F | 66°F | 75.9°F | 5.13 | 8 | 10 | <1 | 14 h 40 min |
| August | 84°F | 64°F | 74.1°F | 3.21 | 8 | 7 | <1 | 13 h 50 min |
| September | 77°F | 55°F | 66.1°F | 4.45 | 9 | 2 | <1 | 12 h 30 min |
| October | 65°F | 43°F | 53.9°F | 3.00 | 7 | <1 | 5 | 11 h 10 min |
| November | 51°F | 32°F | 41.2°F | 2.29 | 6 | <1 | 16 | 10 h |
| December | 39°F | 22°F | 30.6°F | 1.40 | 6 | <1 | 27 | 9 h 20 min |
| Year (annual) | 62°F | 42°F | 52.1°F | 39.42 | 95 | 24 | 124 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 1°C | −9°C | −3.8°C | 30 mm |
| February | 4°C | −6°C | −1.1°C | 44 mm |
| March | 11°C | 0°C | 5.0°C | 68 mm |
| April | 17°C | 6°C | 11.3°C | 90 mm |
| May | 22°C | 12°C | 17.1°C | 140 mm |
| June | 27°C | 17°C | 22.2°C | 134 mm |
| July | 30°C | 19°C | 24.4°C | 130 mm |
| August | 29°C | 18°C | 23.4°C | 82 mm |
| September | 25°C | 13°C | 18.9°C | 113 mm |
| October | 18°C | 6°C | 12.2°C | 76 mm |
| November | 10°C | 0°C | 5.1°C | 58 mm |
| December | 4°C | −5°C | −0.8°C | 36 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Brookfield (8 miles away), gets 19 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00234982; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Linneus?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, August has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00234982.
When is the last frost in Linneus?
In Linneus, the last spring frost (32°F) comes after April 16 in half of years and after May 1 in one year in ten; the first autumn frost comes before October 20 in half of years and before October 7 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 161 year in 10 after May 1; 9 in 10 after April 2
- First autumn frost, half of years before
- October 201 year in 10 before October 7; 9 in 10 before October 31
NOAA puts the median frost-free season at 187 days, and the season without a hard freeze (28°F) at 206 days.
A hard freeze (28°F) comes after April 4 in half of springs and before October 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Linneus in zone 6a in ZIP code 64653, the nearest ZIP area.
Frost dates for every NOAA station in Missouri · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00234982; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Linneus?
In a normal year in Linneus, 24 days a year reach 90°F (1 of them 100°F or more), 124 nights fall to 32°F or colder and 95 days bring measurable precipitation.
- Days at 90°F or more
- 24a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 124a normal year
- Days that stay below freezing
- 36high of 32°F or less
- Days with 0.01 inch of precipitation
- 95a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00234982.
How sunny is Linneus?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Linneus, 4.2 kWh per square metre a day. July is the sunniest month (83%) and January the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.1 |
| February | 70% | 2.9 |
| March | 68% | 3.8 |
| April | 71% | 5.0 |
| May | 73% | 5.7 |
| June | 80% | 6.4 |
| July | 83% | 6.5 |
| August | 81% | 5.6 |
| September | 82% | 4.8 |
| October | 75% | 3.3 |
| November | 73% | 2.4 |
| December | 68% | 1.8 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Linneus need?
A normal year in Linneus brings 5,742 heating degree days, 7% more than the median U.S. place (5,373), and 1,064 cooling degree days, 17% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,533 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,236 | 0 |
| February | 979 | 0 |
| March | 746 | 1 |
| April | 390 | 9 |
| May | 144 | 73 |
| June | 12 | 217 |
| July | 2 | 342 |
| August | 5 | 287 |
| September | 82 | 115 |
| October | 364 | 20 |
| November | 716 | 0 |
| December | 1,066 | 0 |
| Year (annual) | 5,742 | 1,064 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00234982. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Linneus been warmer than normal lately?
2022 averaged 51.5°F, 0.6°F below the 1991-2020 normal of 52.1°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 51.5°F | −0.6°F | 40.01 |
Source: observed years: ACIS, station USC00234982. A year counts only with all twelve months complete.
How does Linneus's climate compare?
Linneus is warmer than 15 of the other 133 places with their own NOAA record in Missouri, and wetter than 16. Across the 7,247 U.S. stations with normals, its annual mean of 52.1°F is warmer than 50%.
In the Köppen classification computed from these normals, Linneus is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Linneus share this climate record?
5 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Meadville, MO419 people · 9 mi SW
- Laclede, MO302 people · 5 mi S
- Browning, MO217 people · 12 mi N
- Purdin, MO139 people · 6 mi N
- Winigan, MO15 people · 19 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Linneus's climate
What is the coldest month in Linneus?
January, with a normal high of 34°F and a normal low of 16°F. The warmest is July (86°F by day, 66°F at night).
Does it snow in Linneus?
Yes. NOAA publishes no 1991-2020 snowfall normal for Linneus's NOAA station; the nearest record that keeps one, Brookfield (8 miles away), records 19 inches of snow in a normal year.
What is the rainiest month in Linneus?
May, with 5.51 in of precipitation in a normal year; the driest is January with 1.19 in.
What plant hardiness zone is Linneus in?
The USDA's 2023 map puts Linneus in zone 6a in ZIP code 64653, the nearest ZIP area.
How late can frost come in Linneus?
In half of years the last 32°F night comes after April 16; in one year in ten it comes after May 1. Waiting until May 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Brookfield, MO8 miles from this station, 53.6°F a year
- Chillicothe, MO23 miles from this station, 53.8°F a year
- Trenton, MO29 miles from this station, 52.8°F a year
- Brunswick, MO30 miles from this station, 54.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made